A nightclub (or "night club" or "club") is a drinking, dancing, and entertainment venue which does its primary business after dark. A nightclub is usually distinguished from bars, pubs or taverns, by the inclusion of a dance floor and a DJ booth, where a DJ plays recorded dance and pop music. Some nightclubs have other forms of entertainment, such as comedians, "go-go" dancers, a floor show or strippers (see strip club). The music in nightclubs is either live bands or, more commonly a mix of songs played by a DJ through a powerful PA system. Most clubs or club nights cater to certain music genres, such as house music, garage, Hip-Hop, or salsa.

A brothel, also known as a bordello or whorehouse, is an establishment specifically dedicated to prostitution, providing the prostitutes a place to meet and to have sex with the clients. In some places, brothels are legal, and in many countries, places such as massage parlor are allowed to function as brothels, with varying degrees of regulation and repression. Depending on zoning, brothels may be confined to special red-light districts or 'tolerance zones'.